#加法
def add(a, b):
    print(f"{a} + {b} =" )
    print(a + b)
add(3, 4)
#加法


def minus(a, b):
    print(f"{a} - {b} =")
    print(a - b)
minus(1, 5)
#减法


def mul(a, b):
    print(f"{a} * {b} =")
    print(a * b)
mul(5, 7)
#乘法


def div(a, b):
    print(f"{a} / {b} =")
    print(a / b)
div(8, 2)
#除法


def amul(a, b):
    print(f"{a} // {b} =")
    print(a // b)
amul(4, 7)
#整除


def yu(a, b):
    print(f"{a} % {b} =")
    print(a % b)
yu(7, 8)
#取余


def pre(a, b):
    print(f"{a} ** {b} =")
    print(a ** b)
pre(7, 9)
#开方



